Pump.



W. L. MORROW.

PUMP.

APPLICATION FILED FEB. 24| 1915.

1,201,073. Patented oct. 10,1916.

Uivrrnn srATiijs rATENT onnioi. l

WILLIAM L. MORROW, OF LOS ANGELES, CALIFORNIA.

PUMP.

Specification of Letters Patent.

Application led February 24, 1915. Serial No. 10,237.

To all whom t may concern.'

Be it known that I, WILLIAM L. MoRRoW, a citizen of the United States,residing at -Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Pumps, of

which the following is a specification.

This invention relates to improvements in pumps, and particularly pumpsadapted to force water from deep weels by air pressure.

It is an object of this invention to provide a pump in which an .airpiston acts upon a column of liquid in the well casing to discharge thesame from the casing.

It is another object of this invention to provide a pneumaticallyoperated pump with an air compressor which continuously forces air intoa reservoir serving to supply air to an air piston for forcing theliquid from a well.

It is a still further object to provide a pump operated by pneumaticpressure with a reservoir, and a relief valve mechanism forintermittently admitting compressed air to act as a piston upon a volumeof water,

then cutting olf the source of air pressure and connecting the airpiston chamber to the atmosphere.

I attain these objects by the mechanism illustrated in the accompanyingdrawing, in which:

Figure 1 illustrates my pump mechanism installed in a well, with thewell and parts of the mechanism shown in vertical section. Fig. 2 showsthe timing mechanism for my `air relief valve. Fig. 3 is a verticalsection through the foot valve.` Fig. l4 is a horizontal section takenon line 4 4 and with the vconduit of the valve cage partly broken away.

' More specifically, 5 indicates an air pump casing provided with pumpcylinders 6 and v7 disposed vertically and having a cooling ment withcranks on crank shaft 15. On the end of crankshaft 15 is secured adriving pulley 16. The inlet ports for the air compressor comprise openports 17 and 18 in the walls of the pump cylinders and are disposed at apoint adjacent the upper end of the piston stroke. At the lower end ofpump cylinders 6 and 7 are mounted check valves 19 and 20 carrying valvestems 2l 23 and 24. Guide sleeves 23 and 24 are se- .cured to caps 25and 26 and are preferably integral therewith. Caps 25 and 26 closeopenings 27 and 28 in lower wall 29 of the air reservoir 30. Disposedover sleeves 23 and 24 are spiral springs 31 and 32 abutting the ends ofthe valves 19and 20, land at the other end the caps 25 and 26respectively. Such an air valve construction permits ready access to thevalves and removal of the springs as caps 27 and'28 may be removedandthe springs l31 and 32, as well as ratenteaoct. 1o, 1916.

valves 19 and 20 removed through the apertures 27 and 28.

In the well is mounted a well casing 33, and mounted upon the surface ofthe ground at the upper end of the casing 33 are discharge troughs 34and 35. Connected to the lower wall 29,0f reservoir 30 is a short pipe36 to which is attached a valve casing 37 having nipples 45 and 46disposed at 90 and 180 degrees thereto.

Attached to the valve casing 37 by means of nipple 46 and in line withthe pipe 36 is member 39 preferably by threads, is a valve i seat 42whichy tightly` lits within the well casing 33, sealing the same. Valveseat 42 is provided with a port 43 controlled by valve 44. Valve casing37 is provided with an air relief port connected to nipple45 leading tothe atmosphere. Mounted within valve casing 37 is an oscillating valve47 having a bore 48v diametrically disposed therein, and a second boreradially disposed and at right angles thereto. Valve 47 .is fiXedlysecured to a stub shaft 48 having on its end and spaced from the casingan arm 49, yMounted on shaft 48 between arm 49 and casing 37 is a spiralspring 50 secured to the arm and to the valve casing, such that it tendsto hold the arm in one position. yLaterally extending from shaft 48 is apin 51 .disposed to engage a sto-p pin 52 which is secured to valvecasing 37. Disposed toengage arm 49 isa cam member 53 ixedly secured toa shaft 54. Shaft 54 is mounted in bearings on theframer of the aircompresser, andV carries at its end a beveled gear 56 which meshes witha beveled gear 57 mounted on a shaft 58, disposed at right angles toshaft 54 and carried in bearing 59 'secured to the reservoir 30; At theopposite end of shaft 58 is a beveled'gear 60 meshing with a gear 6lwhich is secured to the cran 1shaft 15.

.into the `conduit 38,and acts upon the column of liquid therein toforcethe liquid downward. Valve 44 is seated by thepressure and seals thelower part of the well casing from the upper. The compressed air actingas a piston Vupon the top of the watercolumn in conduit 38 forces theliquid Kout of conduit 38 and into the annular space,

causing the liquid therein to rise and overflow into troughs 34 and 35.During this dischargeoperation crank shaft 15 hasbeen continuouslyrevolving and through meshing gears 61, 60, shaft 58, gears 57, and 56,and shaft 54, cam member 53 is caused to revolve and move arm 49 withthe valve 47 into position at 90 degrees to that shown in `Fig. l,wherein the bore '49 is connected to bore 48and'thence through pipe 46to the atmosphere, relieving the pressure on the water. At the same timepipe 36is sealed by the valve 47. Water enters through valve 44'andaround it into conduit 38, and also into the chamber surrounding conduit`38. The ball 44 rests on the top of valve cage 39, but does not Ycloseconduit 38.

The timing of valve 47 is determined by factors 4which includethe'di'mensionsof the chamber between pipe 38 and casing 33, the

pressure and velocity, so that the inertia of thecolumn of water assistsin discharging the latter and drawing in a new increment of water. Asthere. are no valves or obstructions in the discharge chamber, theopening ofthe air valve permits the water remaining in the dischargeVpipe to return, then oscillate back toward the discharge, at which timevthe (ai-r valve admits compressedrair to further i discharge liquid.The discharge chamber between pipe 38 and casing 33 thus forms a playchamber inwhich the .water may oscillate.

y What Iiiclaim is LIn a lpuinp, the combination of meansproviding'a'source of lcompressed air, a receptaclefor liquid vto bepumped, an Vinlet valve for liquid in said receptacle, an unobstructeddischarge condult of less volume than saidl receptacle having a freeconnec- .tion therewith forming a play pipe, an air conduit connected tosaid receptacle and means, an air valve disposed in said conduit havingra port leading to said means, a po'rt leading to a source of lowpressure, and a timing mechanism for continuously operating said airvalve to alternately connect said receptacle to said source of'compressed air and said source of low pressure.

2. In a pump, the combination with a well casing, of,4 means providinga-,sourcef rela'- tively high pressure, a conduit connected to saidmeans extending into said well casing and freely spaced therefrom toform therebetween an unobstructed play pipe, the volume of said conduitbeing `relatively greater than the volume of said pipe, an air valvehavinga port connected to said means and a port connectedto a source of'relatively low pressure, a valve 'seatmounte'dbelowtheflwer end oflsaidconduit tightly fitting said cas-- ing and'having a port connected tothe lower part thereof, a valve mounted in said "cage to control thelast named port opening, and a timing mechanism for continuously operating said valve to alternately connect 'said conduit to said sourceof high pressure and to said source of low pressure. Y

3. In a pump, the combination with `a Well casing, of means ,providing asource of relatively high pressure air, a reservoir for re'- ceivingcompressed air, a` conduit connected to said reservoir extending intosaid well casing and freely spaced therefrom to form a free unobstructedplay chamber, the volume of said conduit being relativelygreater thanthe volume of the chamber formedbe tween said conduit and well casing,analr valve having a port connected tofsaid reservoir, and a portconnected,` to a lsource `of relatively lowy pressure, a valve seatmounted below` the flower end of "said "conduit tightly'iitting saidcasingand having azpo'rt connected to the lower part of the casing, Vavalve mounted in saidV cage to 'control the last named port opening, anda timingmechanism for continuously operating said' air valve toalternately connectk said conduit to said source of high pressure landYsaid lsource of lovi7 pressure.

4.. In a pump, the combination with a well casing, of an aircompressor,a reservoir for receiving `compressed air, a conduit connected to saidreservoir extending into said well casing and freely spaced therefrom toform a free unobstructed chamber, the volume offsaid conduit beingrelatively greater than the volume of thechamber'formed between saidconduit and well casing, an air valveadjacent said, air reservoir havingra port connected vto said 'reservoir anda Yport connected to a sourceof-relativelyflow pressure, a valve cage attached at the crown thereofto said conduit and open to said conduit, said valve cagehaving a portedseat tightly fitting said casing, a ball valve arranged in said cagetoengage said seat, and a timing mechanism connected to said air valvefor continuously operating the latter to alternately connectsaid conduitto said source of compressed air and said source of low pressure.

5. In a pump, the combination With a Well casing, of an air compressor,a reservoir for receiving compressed air, a conduit connected to saidreservoir extending into said Well casing and freely spaced therefrom toform a free unobstructed chamber, the volume of said conduit beingrelatively greater Y than the volume of the chamber formed between saidconduit and Well casing, a rotary air valve connected to said conduithaving a port comn1unicating--v with said air reservoir, and a portcommunicating with a source of relatively low pressure, means forcontinuously rotating saidgvalve, a valve cage attached at the crownthereof to said conduit and open thereto, 'said valve cage having 'aport seat tightly lit said cage, and a seat. e

In Witness thatfI claim the foregoing I` have' hereunto subscribed myname this 15th MARGUERITE BATES.

copies of this patent may be obtained for nve cents each, by addressingthe "Commissioner o! l'stents Washington, D. C.

.ting bali; valve arranged ins'ai cage to engage said?

